Calendar



(Model.) 2 Shets-Shet 1.

G. W. SHIRK. CALENDAR.

No. 542,538. Patented July 9, 1895.4

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Gr. W. SHIRK.

CALENDAR.

2 Sheets-Sheet 2.

Patented July 9, 1895.

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GEORGE W. SHIRK, OF VAN ORIN, ILLINOIS.

CALENDAR.

SPECIFICATIQN forming part of Letters Patent No. 542,538, dated July 9, 1895.

Application ined nach 21,1895. sain No. 542,663. (Modem l To all whom it may concern.- y

Be it known that I, GEORGE W. SHIRK, of Van Orin,in the county of Bureau and State of Illinois, have invented a new and Improved Oalendar,of which the followingisafull,elear, and exact description.

This invention relates to calendars of a type that are denominated perpetual or which are adapted to indicate the year, month, and day of the month for a great many years.

The object of my invention is to provide a very simple device of the character indicated, which will possess novel features of construction that adapt it to automatically adj ust the day-indicator when the month-indicating dial is moved, so as to exhibit the correct number of days for the month that is displayed on the calendar. A further object is to provide a calendar that may be produced at a low cost, which will be reliable in operation and be adapted for changing to expose the correct year,month, day-name, and also the date-numeral of the montli,and, furthermore, that will be of such a convenient shape and dimensions as will permit the face of the calendar to be utilized for containing business-cards or other advertisements and prominently display them.

The invention consists in the construction and combination of parts, as is hereinafter described, and indicated in the claims.

Reference is to be had vto the accompanyingr drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views. Figure 1 is a front/view of the calendar with the face-plate broken away to show working parts of the device, other details being represented by dotted lines. Fig. 2 is a transverse sectional view ou the line 2 2 in Fig. l. Fig. 3 is a transverse sectional view on the line 3 3 in Fig. 1. Fig. L is a front View, in part, of the calendar with the face -plate broken away to expose normally-concealed parts which have received adjustment to effeet the display of numerals to indicate twenty-eight consecutive days for the month of February. Fig. is a front view of the de vice in part with a portion of the face-plate removed, showing the relative position of working parts that have been changed in position from that represented in Figs. l and et.

Fig. 6 is a rear view of the week-day name and date slidesthat are located within the casing of the calendar in position indicated by arrow 6 in Fig. 3. Fig. 7 is a transverse partly sectional View of the details shown in Fig. 6 on the line 7 7 in said figure; and Fig. 8 is a perspective view of part of the monthindicating dial, which constitutes part ofthe invention.

The casing that is provided to hold in proper position the several working parts of the improved calendar is preferably given a rectangular form, having a suitable thickness to enable the disposition of said parts within it.

Any available material may be employed from which to produce the casing, that comprises a back piece 10 and a face-plate l1, the back piece being recessed a proper depth and rendered level on the bottoinwsurface to afford a receptacle for other details, and it may here be mentioned that the two parts of the casing may be secured together by any preferred means after the interior parts have been properly placed in position within the back piece.

`The upright wall of the recess in the back piece 10 may be given a circular form to adapt it to laterally support the ring-like piece 12, that has a loose engagement therewith, or any other means may be employed to prevent lateral displacement of the annular part 12, which, when in place, is seated on the bottom of the recess in the back piece 10.

The ring 12 is of sufficient width to permit imprinting or otherwise forming the series ot' spaced year indications on its front face, these extending in a circle around saidring, as indicated in Fig. 1, and, as represented in Figs. l and 4, an aperture l1a is eut in the faceplate 11 at a correct point to permit the exj IOO thicker portion or rim 13@` is formed around the periphery and is fiush with the top and bottom surfaces of the ring 12. The rim 13a is substantially annular.

The names of the twelve months of the year are produced in regular order on the top su rface of the rim 13LL and read to the left from January, as is represented by full and dotted lines in Fig. 1,portions of the ring 12 and rim 13, with the spaced year and month designations shown thereon, also appearing in Figs. 4- and 5.

At a suitable point, preferably near the aperture 11a, a larger aperture 1lb is formed in the face-plate 1.1, as clearly shown in Figs. 1 and 4, this aperture being designed toexpose to view the names of the months consecutively as the dial-plate 13 is rotated, and this movement is always toward the right of the casing, as indicated by the curved arrows in Figs. 1, it, and 5.

A series of small perforations 12a and 13d are produced at proper intervals both in the ring 12 and rim of the dial 13, these perforations being of service to permit the application of any pointed implement to the ring and dial for their rotation, the said perforations being exposed for the introduction of a pin or other pointed device at the apertures 1la 1lb, as shown in Fig. 1.

Between adjacent names of the months and close to the inner edge of the rim 13L a number of recesses 13b are formed in the thinner portion of the dial-plate 13, the said recesses being designed to facilitate the formation of twelve ears 13c that project from 'the inner edge of the rim 13a into the recesses.

Near the transverse center of the face-plate 11 two parallel slots 111a 15a are produced, (see Figs. 1 and 3,) and are located one at each side of the pivot 10a, and beneath said slots slideplates 14 and 15 are respectively located, the latter being maintained in place free to receive longitudinal adjustment by the guidestrips 16, that are fastened on the rear face of the plate 11, the meeting edges of the slideplates and guide-strips being beveled, so as to mate and aord a loose connection between the said parts, as clearly shown in Figs. 6 and 7.

On the surfaceA of the slide-plate 14, which is exposed through the slot 14:, a series of thirty-one integers are produced in correct numerical order, beginning with l at the end of the slide-plate, which may be regarded as uppermost in service, providing the casing is erected or hung in an upright position for the convenient reading of its indications.

On the face of the slide-plate l5, which appears through the aperture 15a, a succession of groups of day-names are formed, these groups each representing the days of the weeks of a month in regular ol'der, and are intended to be arranged so as to appear successively Opposite a proper integer that designates the month-date of the day-name with which it is in alignment, as clearly represented in Figs. 1 and 4.

A notch is formed on or in the edge ofthe slide-plate 14 that is farthest from the pivot 10, either by the formation of spaced bars 'thereon as shown, or by cutting away material, as may be preferred, the said notch being provided for the reception of the limb 16L of the rocking dog 16, loosely engaged intermediate its ends by the pintle 16b projecting from the inner surface of the face-plate 11, the dog having a toe 16c that projects closely .to the inner edge of the dial-plate rim 13a. Below the dog 16 another dog 17 is in a like manner pivoted on a pintle l7EL on the inner face of the plate 11, and the dogs 16 and 17 are of such a relative thickness that theywill lie inthe space afforded by the elevation of the rim 132L above the general surface of the dial-plate 13 and have their faces, that are flush with the rim, in loose contact with the inner face of the plate 11, so that the dogs will vbe free to receive movement on their pivots. The dog 17 has a toe 17`b projected toward the rim of the dial-plate 13, and, as will be seen in Fig. l, when it is rocked to locate the toe thereon substantially in the same horizontal plane with the pivot 17ad the toe will have clearance from an adjacent ear of the rim 13a.

A knuckle protuberance 17c is formed on the dog 17 at a point nearly opposite the toe 17h, the knuckle being loosely entered in a scallop 16d that is produced in the edge ofthe dog 16 below its pivot, the knuckle and scalloped edge ha\ing a loose -jointed engagement, so that the rocking movement of thedog 16, by contact of its toe with an upwardlymoved ear ot' the rim 13% will transmit inotion to the dog 17 and rocks its toe in adownward direction or oppositely from the trend of the toe 16C, and it will be evident that should the toe 17b receive an upward movement from an ear on the dial-plate 13 the toe 16c will be depressed a certain degree.

Assuming that the parts of the calendar are assembled and relatively adjusted, as shown in Fig. 1, which will expose the present-year indication 1895 at l1a and January77 at the aperture 11b, then the slide-plate 14: will be so held by the limb of the dog 16 that the vfull thirty-one date-numerals will be displayed through the slot 14a. It will be observed that when the dogs 16 17 are adjusted, as represented in Fig. 1, there will be one of the ears 13 located below and near to the toe 16, and that the toe of the dog 17 has a position near to but not in the path of the ear 13 next below the toe 17".

When the month of January is current, the week-day name-slide 15 should be longitudinally adjusted, by insertion of a pin or other pointed instrument in a small perforation in this slide-plate, so as to locate the proper day name or its abbreviation in the same plane with the iigure l on the slide-plate 14, denoting the first day of the month of January, which, in the year 1895, is Tuesday, and as the names of succeeding days are arranged in their regular order it will be evident that the IOL IIC

proper name for each successive day of the month will appear opposite the numeral denoting the date of said day, as clearly shownV name February opposite said aperturev 'when the dial-plate has been sufficiently moved.

As represented in Fig. e of the drawings,

the traverse of the month-name February,

by moving dial 13 toward the aperture 11b, effects the simultaneous downward-sliding movement of the slide-plate 14, and the rela` tive proportion of parts is such that when the name February is displayed, as indicatedV in Fig. 4, then the movement of the dog 16 has so depressed the slide-plate 14 that but twenty-eight numerical indications will be exposed through the slot 14a of the face-plate 1l. 13 will expose twenty-nine day-date numerals in the slot14u. The downward-rocking movement of the toe 17h, effected when the dialplate 13 is moved to expose the name Februf ary,'projects said toe in the path of an approaching ear 13C, and causes said ear to nearly touch the toe, as shown in Fig. 4, and forthe correct operation of the calendar the month-names on the dial-plate are so spaced apart that when successive months are to be indicated throughout the year either the dog 16 or 17 will be adapted to change the adjustment of the slide-plate 14 for a proper exposure of the correct number ot' day-num erals on it through the slot 14a. As, for instance, the movement of the dial-plate 13 toward the aperture 11b, so as to bring the 'month-name March in the said aperture, will cause the adjacent ear13b to pressthe toe 17h upwardly, and this will so move the dog 16 as to elevate the slide-plate 14 and expose thirty-one daydate numerals in the slot 14a.

The dog 16 always throws the slide-plate 14 down to the same starting-point. The nam es ofthe months are so spaced that when the name of any desired month is at the center of the space 11b the dog 17, and consequently the slide-plate 14, willbe carried up to a position corresponding to the number of days of` that month. It there be less than thirty-one days in the month, the dogs 17 and 16 and plate 14 will be moved still further after the name ot' the month has passed the center ot the space 11b. Thus the plate 14 always travels the same distance up and down for each month; but in the case of a short month A slightly further movement ofthe dial the limit of the downward movement has not been reached when the name of the month is at the center of the space 11b.

It is to be understood that the numerical year indications on the ring 12 are to be changed in position so as to successively eX- pose the current-year symbol, and that the slide-plate 15 is to be moved so as to locate the proper name-abbreviation in line with the rst-day numeral of each succeeding month, so that the calendar can be conveniently and quickly set to indicate the year, month, and day indications as time passes, and the calendar will last for a long term of years.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. An adjustable calendar having a day date slide, automatically adjustable when the month name indication is exposed, so as to display the correct number of date integers for the current month, substantially as described.

2. A calendar, comprising a recessed casing, apertured and slotted in its front, a rotatable plate ring having numerical year indications thereon, a movable dial plate having month name symbols produced thereon in regular order, a longitudinally-inovable slide plate bearing day names, and a longitudinally-adjustable day date slide plate operated simultaneously with the dial plate, substantially as described.

3. In a calendar, the combination with a recessed casing, having its face plate apertured in its front for the exposure of year symbols and month names in sequence, and also provided with two parallel slots, of arotatable plate ring having numerical year indications thereon, adapted to be successively exposed at one aperture of the face plate, a movable dial plate having month name syrulbols produced thereon, adapted to success- IOC IIO

ively appear `at the other aperture of the face y plate when the dial is moved, alongitudinallymovable slide plate bearing day names, a longitudinally-adjustable slide plate bearing day dates, the said slide plates being located opposite the slots of the face plate, and devices for simultaneously and correspondingly moving the day date slide plate when the dial plate is partly rotated, substantially as described.

' I4. In a calendar, the combination with a recessed casing having two apertures and two parallel slots in its face plate, of a rotatable plate ring having numerical spaced year indications thereon, adapted to successively apand pivoted dogs adapted to receive motion from the dial plate and longitudinally move the day date slide plate, substantially as described.

5. In a calendar, the combination with a casing", having parallel slots in its face plate, and a rotary year date plate in the casing, a dial plate having a raised rim and a series of ears on the inner edge of said rim, of a slid- Io able day date plate in the easing opposite one of the slots in said casing, and pivoted dogs engaging each other, one ofthe dogs engaging a notch in the slidable plate, both dogs being adapted to receive the impinge of the ears of the dial plate for the slidable movement of 15 the day date plate, substantially as described.

GEORGE W. SHIRK.

Witnesses:

WILLIAM S. MATTEsoN, WILLIAM ESTERDAY. 

